Creuzer | Random things Creuzer

Creuzer

Random things Creuzer

My nearly-4 year old is playing with the fingers for a printable prosthetic hand…

My nearly-4 year old is playing with the fingers for a printable prosthetic hand I am printing as part of http://enablingthefuture.org/.

This is the original sized fingers for one model of hand. She thinks it's the coolest thing ever! She is working the joints for me so they function more smoothly.

Related Posts:

  • None found using super-cool computer algorithms.

We need to make another 3D printer because the kids don't like to share with…

We need to make another 3D printer because the kids don't like to share with each other…

In album 2014-03-30

Looks to me like they got an i3 in the works…

It all becomes clear when she starts talking…

She is not happy she has been served…

The kids love the 3d printers. It makes toys for them.

I handed Bella some of my pointless nails. Really, they are pointless. Flat tips.

She named the flowers George.

Related Posts:

  • None found using super-cool computer algorithms.

Portable RepRap for demonstrations

I recently attended the Midwest RepRap Fest (MRRF 2014). In talking to a few of the other attendees, I noticed a couple of themes. A lot of us do demonstrations of our printers and those who flew to the event didn’t have their printers along.

2 RepRaps and a ROMER laser scanner

This is what I brought to the event. 2 printers, a ROMER arm laser scanner, 2 computers, 3 tablets, my portable robot making fastener kit, some clothes, and a case of soda. Filled the back of trucklet right up.

This tells me that there is a need that has yet to be fulfilled. The hobby needs a small, portable printer.

Just push hard, it will fit, right?

I think having a 3d printer that can fit into a carry-on bag isn’t too much to ask.

OK, that would be a REALLY small printer, that can take a bit of abuse, being banged around inside a carry on bag.

Water Cooled Maker Gear Prusa Mendal RepRap with a tablet using GCodePrintr

This is my ‘small’ printer. That’s a 7 inch tablet running it in this photo.

RepRap in a case

I have this HUGE case that JUST fits my printer.

So, on the way home, I put some thought to the problem.

We need a printer that is:

  • Able to be held in one hand for demonstrations
  • Able to fit in carry on luggage for travel
  • Able to run while ‘unplugged’ if just for a short period of time
  • Visually interesting and has all the parts exposed so it’s easy to explain how it works

 

I picked up a SmoothieBoard at the show, so I want to run it off of this new-to-me board. It seems to be one of the larger boards, so other boards could be dropped in if desired. It has a built in microSD slot, so it can print without a controller. It also has lots of extra horsepower so it can do some crazy cool stuff.

Looking around, at MRRF, I saw the Tantalus. A nice, small, box printer, but not small enough. I also saw the Wally.

Then it hit me, what if I was to put a Wally inside a Tantalus. Shrunk down. The magic is that the Wally can extend outside of it’s containing ‘box’ while in use, but ‘park’ within the confines for safe traveling.

BOOM! I can print a larger print in a smaller space.

Wally at MRRF 2014

Meet Wally. So named because it’s a ‘wall’ printer, everything is built off of the back wall.

I think Wally is a slick printer. It’s built with plastic parts, common bolts, and not much else.

image

Wally's Z Stage

This the Z stage. It travels in an arc as it goes up and down. Crazy simple mechanically, and it makes my brain hurt doing the math on it even though I know it’s a simple offset.

image

image

 

A few minor tweaks and I think a Wally can be crammed into a small box. The Z can come out of the front view port while printing and the XY arms can extend out the sides while printing.

The Z arms need to be longer, poke through the back, and bolt on with the mounts towards the inside so we can get the max width print bed on the inside of the printer.

Everything needs to scale down a bit. From my reading, there needs to be a 7-10 ratio between the pulley on the motor to the big pulleys. There is also some ratio for the arm length to the big pulley size, but I don’t understand that yet.

All the motors should hang off the back I think, just so there is more viewing room inside the box.

I am thinking a 150mm square box would give me enough room to route wires cleanly off of a smoothieboard.

A small battery can sit under the print bed. I am thinking the power supply should be a generic laptop power supply. This keeps the printer smaller and lighter, not having to mount a power supply in it. This would also allow us to unplug the printer for short periods of time to walk around with it.

Mulling the idea around a little bit before I create a fork of Wally and start wrenching on the parts hard.

I think a lot of people will complain that it will be TOO small to be useful. It’s not intended on being an only printer, it’s a functional demonstration piece. Long (large) prints aren’t useful for demonstrations, it seems like they are only half-done when you want to pack up and leave. You want to be able to spit out a part in less than half an hour and have people hold it.

Related Posts:

I went to the Midwest RepRap Fest (#MRRF) in Goshen Indiana this year

I was asked to go by a friend last year, but couldn't afford a hotel at the time. 

Work found out (I have a big mouth) and offered to be a sponsor! A big bonus to this, I got to bring one of our very expensive ROMER arms with a  laser scanner. 

The show was a blast! I am still recuperating.

Considering I own nearly half of the 3d printers I'd seen running in person, the show was EPIC. So many machines! So many people.  The people there listed like my version of a hollywood blockbuster movie!   Prusa, Tonokip, Logxen, Seward, Os1r1s, and more!

I brought my 2 printers. Each has something a bit unique. One has a water cooled hot end, which is rare. The other uses both belts and fishing line on the save drive line, which I have not seen done before.

I didn't even get a chance to take many photos. Disappointing, but an excuse to go again next year.

There was  a local who had lost his hands to bacterial meningitis a few years ago. A last minute project was to have the people who brought printers there print out a pair of robot hands for him. I had the scanner, so I scanned in his arms. By the time the show was over, there was half of one arm printed. It was just SO crazy busy that we just couldn't get it done at the show. The project is getting finished after the show.

In album MRRF2014

This is my portable robot building fastener set. It has many of the the important bits besides structural components. The most important tool is the brain-juice!

Yeah, that’s right, I had lunch with the guy with the reddit Up Vote Orange Challenger.  Crazy cool!

The first Makergear M2 I’ve seen in person. I like it.

Packing up for the show. My Mendal 3D printer fits into a plastic case I’d rescued from a dumpster. It fits perfectly, like they where designed for each other.

All loaded up and ready to go. Two 3D printers, a laser scanner, a couple of computers & tablets, My robot building kit, some stools & a case of Mt Dew.

Here I am scanning a print to see how accurately the printer was able to hit the design. It did pretty darn good. There is a little bit of ‘shrink’ as the ABS plastic cools, and we can see that.

This came off of one of the printers at the show. I compared the file to the print and it came out quite nicely. Undersized, but the profile matched really nicely.

This printer is just wild! It’s made from really common bolts, fishing line, guitar tuners and massive amounts of creativity.

The Simpson printer really looks like a spider, spinning a web. I just love this thing.

This is another pretty cool printer.

I can’t imagine writing the gcode for this, to push out the coordinates as the bed raises.

This is a twisty machine. The linear rods are also the drive. The math makes my brain hurt!

I like this plastic bowden capture.

I got my printer working off of a cheap tablet. This is going to be SO nice!

I got ALL the nylons…

Related Posts:

While at the Midwest RepRap Fest I picked up some nylon

Well, all the nylon, and some other stuff too.

I know nylon ought not be ran through my MakerGear hotends, but I water cool them so I should be able to keep the PEEK cool enough to be ok.

I am pumped to start printing parts.

In album 3/17/14

Related Posts:

I finally got a chance to give this a try at the Midwest RepRap Fest

I'd bought the app Thursday night so I could us it this weekend.

I used a $50 black Friday special RCA 7" tablet. Plugged it into my Makergear Prusa Mendal running a fairly current marlin on ramps 1.4.

It just worked.

I love it when things just work.

It took me a minute to figure out that there is a tab on the right side to toggle to the printer controls.

I loaded a gcode file I'd sliced and printed on my laptop. It worked just as well as my laptop.

Related Posts:

  • None found using super-cool computer algorithms.

The big one didn't want to eat supper

 Fine.  If she isn't hungry, I won't make her eat.  She is more of a breakfast person anyhow.  Healthier that way I read.

Anyhow,  She won't eat so she gets to teach the little one the joys of the spoon.  They are both happy that way and I can eat my supper while it's still hot.

Related Posts:

  • None found using super-cool computer algorithms.

I spent last week at my folks, taking care of some chores that they couldn't…

I spent last week at my folks, taking care of some chores that they couldn't do while feeling under the weather.

Lots of wood cutting, cooking, shoveling, and the like. I have ran a chainsaw more in the last week than I have all my life.

It feels good to be able to help my folks out after all they've done for me. I just wish that they where healthy enough that I didn't need to!

The weather up north has been pretty bad. I don't remember ever seeing the roads as bad as they where. I am SO glad I took the time to put my good snow tires on. Nothing like waiting until March 1st to install your snowies!

I think I got enough chores done that they can rest and get healthy for spring.

We finished the trip with a day at the Mall of America. Let the girls have some fun at the amusement park.

In album Week at the grandparents

Mmore wood, ready to go to the house. I did over half a dozen trips like this.  The wood trailer is stuck behind a hundred yards of 3 foot deep snow.

Julie was SO EXCITED when she saw Dora. “DADO DADO DADO DADO” she kept saying. However, she just wasn’t having the photo op.

I picked up my birthday present from my wife! She knows me so well. She gets me 100 year old stuff. How awesome is that?

My saint of a wife cooked, and cooked, and cooked. Freezer meals. Meatloaf, lasagna, spaghetti sauce, chicken noodle soup, chicken pot pies.

I’ve never seen roads so bad. There is over an inch of packed snow-ice on everything that isn’t a major highway. Some spots the snow banks on the side of the road have to be 15 foot tall!

I spent some time checking propane gauges. This one is good yet.

I was shoveling sidewalks. Well, where they ought to be at least. This was over knee deep for me. Other spots I was shoveling, I step off, and go waist deep – and never touched bottom.

The girls washed the windows with their faces…

Missing grandpa. He was in the ICU.

Getting artwork posted at a restaurant.

Cutting wood. My dad has the process down pretty well. No bending over, no working too hard. Haul the long pieces in, drop them into the saw horses, cut them to size, load them into the truck. There is a wood splitter  by the tailgate for the oversized pieces.

Fresh wood to be cut. This is stuff from a local saw mill. All red oak.

Fast-freeze hot food.  No shocking the freezer this way.

We went to the Mall of America to ‘finish off’ the week doing something other than taking care of ill grandparents. The backpack is full of our winter jackets.

Bella LOVED the rides. She did this one twice!

Related Posts:

My wife and old man conspired to get me a birthday present

Picked it up today. It's staying at my folks for a while yet until I have room to bring it back.

I can't find a name on it, just the number 100. It is missing the leather  drive belt, probably eaten by mice. 

Once I cleaned the mouse nest out of the blower, everything seems to work. There is a slight hop in the big pulley, should be small enough that the leather belt can 'eat' it.

I think the cover may be a drain cover. 

Anybody have an idea of the rough age of this guy? I've found a few pictures just like it online, but with no info.

I think my wife and father did a pretty good job on this forge.

In album 2014-03-07

Related Posts:

I ordered a copy of the POCKET REF 4th edition by Thomas J

Glover. The book truly is a small book. I decided that I needed to make a case for it to keep it nice as I intend to haul it around with me.

A sharp knife, some scrap leather and an hour, and I have a handy little reference that should stay nice for a long time and not need to be recharged!

In album POCKET REF Leather Cover

The finished book cover. I decided not to dye it black. It took me an hour to make, start to finish.

Flipping through my new favorite book! The case opens up so I can take the book out. Should keep the cover nicer, longer.

Well, the book fits, but I think I can do better than this.

The bits and pieces I need for making a cover for my Pocket Ref. A piece of leather out of a ‘scrap leather’ bag from a hobby store, a sharp knife, a cutting mat, Neatsfoot Oil and Dye.

The leather was an assortment grab bag. I was lucky I had a piece that was big enough I could make something work. There was another piece with a color I liked better, but I couldn’t get something I liked cut out of it.

Works this way…

And it works this way…

I used the cutting mat to mark the cut lines. Just slide it along on the edge. Visible marks on the suede side of the leather. I also oiled  the finished side at this point so the oil has a chance to soak in before I dye it.

Measure twice, cut once. Cut isn’t perfectly straight, but it’s good enough for me.

I cut a belt and a belt loop out of the short side fold overs.

The book just sits in this case for safe carrying.

Fold and mark the tie strap locations. The little triangle is from whatever this was to be originally. Alignment marks or something.

Some strips from trimming the edges to fit better are tied on the inside.

A tidy wrap for a tiny book.

Related Posts:

  • None found using super-cool computer algorithms.